Gregory Janzen, RN

Primary specialty

Critical Care Medicine Registered NurseTaxonomy code 163WC0200X

License

23790-30 Issued in WI

Practice address

4801 E Linwood Blvd
Kansas City, MO 64128-2226

Phone

(816) 861-4700

NPI assigned

Feb 27, 2025

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Registered Nurse

State licenses

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1740614400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1740614400000",
    "number": "1528865342",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4801 E LINWOOD BLVD",
            "city": "KANSAS CITY",
            "state": "MO",
            "postal_code": "641282226"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4801 E LINWOOD BLVD",
            "city": "KANSAS CITY",
            "state": "MO",
            "postal_code": "641282226",
            "telephone_number": "816-861-4700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JANZEN",
        "first_name": "GREGORY",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-02-27",
        "last_updated": "2025-02-27",
        "certification_date": "2025-02-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "WI",
            "license": "23790-30",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Deborah Ann Jantsch, MD
• Jessica M Jantz, R.D.
• Ellen Marie Jantzen
• Kaitlyn Jantzen, RN, APRN
• Kelsey Lea Janvier, LPC
• Brian C. Jao, M.D.
• Isabel Maria Jaramillo Almeida, MD
• April Diane Jardes
• Dale E Jarka, M.D.
• Ada Jarrar, LMSW

• Critical Care Medicine Registered Nurse in Kansas City, MO
• Providers in Kansas City, MO by specialty
• Critical Care Medicine Registered Nurse in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 27, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.